housekeeping: match master @ 121458e

README.md

@@ -17,7 +17,7 @@
 <br>
 <br>
 <a href="https://github.com/reactiveui/reactiveui">
-  <img width="160" heigth="160" src="https://github.com/reactiveui/styleguide/blob/master/logo/logo.svg">
+  <img width="160" heigth="160" src="https://raw.githubusercontent.com/reactiveui/styleguide/master/logo/main.png">
 </a>
 <br>
 <h1>What is ReactiveUI?</h1>

build.cake

@@ -24,6 +24,7 @@ var packageWhitelist = new List<FilePath>
     MakeAbsolute(File("./src/ReactiveUI.Fody.Helpers/ReactiveUI.Fody.Helpers.csproj")),
     MakeAbsolute(File("./src/ReactiveUI.AndroidSupport/ReactiveUI.AndroidSupport.csproj")),
     MakeAbsolute(File("./src/ReactiveUI.XamForms/ReactiveUI.XamForms.csproj")),
+    MakeAbsolute(File("./src/ReactiveUI.Uno/ReactiveUI.Uno.csproj")),
 };
 
 if (IsRunningOnWindows())

src/Directory.build.props

@@ -67,7 +67,7 @@
   </ItemGroup>
 
   <ItemGroup>	
-    <PackageReference Include="Nerdbank.GitVersioning" Version="2.3.38" PrivateAssets="all" />	
+    <PackageReference Include="Nerdbank.GitVersioning" Version="2.3.183" PrivateAssets="all" />	
   </ItemGroup>
 
   <ItemGroup>

src/ReactiveUI.Fody.Helpers/ReactiveUI.Fody.Helpers.csproj

@@ -14,8 +14,8 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Fody" Version="5.0.6" PrivateAssets="None" />
-    <PackageReference Include="FodyPackaging" Version="5.0.6" PrivateAssets="All" />
+    <PackageReference Include="Fody" Version="5.1.0" PrivateAssets="None" />
+    <PackageReference Include="FodyPackaging" Version="5.1.0" PrivateAssets="All" />
     <PackageReference Include="System.Reactive" Version="4.2.0-preview.566" />
   </ItemGroup>
 

src/ReactiveUI.Fody/ReactiveUI.Fody.csproj

@@ -7,6 +7,6 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="FodyHelpers" Version="5.0.6" />
+    <PackageReference Include="FodyHelpers" Version="5.1.0" />
   </ItemGroup>
 </Project>

src/ReactiveUI.Testing/ReactiveUI.Testing.csproj

@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.Reactive.Testing" Version="4.1.5" />
+    <PackageReference Include="Microsoft.Reactive.Testing" Version="4.2.0-preview.566" />
     <ProjectReference Include="..\ReactiveUI\ReactiveUI.csproj" />
   </ItemGroup>
 

src/ReactiveUI.Tests/API/ApiApprovalTests.ReactiveUI.net461.approved.txt

@@ -1,5 +1,6 @@
 [assembly: System.Runtime.CompilerServices.InternalsVisibleToAttribute("ReactiveUI.AndroidSupport")]
 [assembly: System.Runtime.CompilerServices.InternalsVisibleToAttribute("ReactiveUI.Tests")]
+[assembly: System.Runtime.CompilerServices.InternalsVisibleToAttribute("ReactiveUI.Uno")]
 [assembly: System.Runtime.CompilerServices.InternalsVisibleToAttribute("ReactiveUI.Winforms")]
 [assembly: System.Runtime.CompilerServices.InternalsVisibleToAttribute("ReactiveUI.Wpf")]
 [assembly: System.Runtime.CompilerServices.InternalsVisibleToAttribute("ReactiveUI.XamForms")]

src/ReactiveUI.Tests/API/ApiApprovalTests.ReactiveUI.netcoreapp2.0.approved.txt

@@ -1,5 +1,6 @@
 [assembly: System.Runtime.CompilerServices.InternalsVisibleToAttribute("ReactiveUI.AndroidSupport")]
 [assembly: System.Runtime.CompilerServices.InternalsVisibleToAttribute("ReactiveUI.Tests")]
+[assembly: System.Runtime.CompilerServices.InternalsVisibleToAttribute("ReactiveUI.Uno")]
 [assembly: System.Runtime.CompilerServices.InternalsVisibleToAttribute("ReactiveUI.Winforms")]
 [assembly: System.Runtime.CompilerServices.InternalsVisibleToAttribute("ReactiveUI.Wpf")]
 [assembly: System.Runtime.CompilerServices.InternalsVisibleToAttribute("ReactiveUI.XamForms")]

src/ReactiveUI.Uno/ActivationForViewFetcher.cs

@@ -0,0 +1,66 @@
+// Copyright (c) 2019 .NET Foundation and Contributors. All rights reserved.
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for full license information.
+
+using System;
+using System.Linq;
+using System.Reactive;
+using System.Reactive.Linq;
+using System.Reflection;
+
+using Windows.Foundation;
+using Windows.UI.Xaml;
+
+namespace ReactiveUI
+{
+    /// <summary>
+    /// ActiveationForViewFetcher is how ReactiveUI determine when a
+    /// View is activated or deactivated. This is usually only used when porting
+    /// ReactiveUI to a new UI framework.
+    /// </summary>
+    public class ActivationForViewFetcher : IActivationForViewFetcher
+    {
+        /// <inheritdoc/>
+        public int GetAffinityForView(Type view)
+        {
+            return typeof(FrameworkElement).GetTypeInfo().IsAssignableFrom(view.GetTypeInfo()) ? 10 : 0;
+        }
+
+        /// <inheritdoc/>
+        public IObservable<bool> GetActivationForView(IActivatable view)
+        {
+            var fe = view as FrameworkElement;
+
+            if (fe == null)
+            {
+                return Observable<bool>.Empty;
+            }
+
+#pragma warning disable SA1114 // Parameter list after.
+#if NETSTANDARD || MAC
+            var viewLoaded = Observable.FromEvent<RoutedEventHandler, bool>(
+#else
+            var viewLoaded = Observable.FromEvent<TypedEventHandler<DependencyObject, object>, bool>(
+#endif
+                eventHandler => (_, __) => eventHandler(true),
+                x => fe.Loading += x,
+                x => fe.Loading -= x);
+
+            var viewUnloaded = Observable.FromEvent<RoutedEventHandler, bool>(
+                handler =>
+                {
+                    void EventHandler(object sender, RoutedEventArgs e) => handler(false);
+                    return EventHandler;
+                },
+                x => fe.Unloaded += x,
+                x => fe.Unloaded -= x);
+
+            return viewLoaded
+                .Merge(viewUnloaded)
+                .Select(b => b ? fe.WhenAnyValue(x => x.IsHitTestVisible).SkipWhile(x => !x) : Observables.False)
+                .Switch()
+                .DistinctUntilChanged();
+        }
+    }
+}